使用 FOR 或 FOREACH 循环无限循环数组中的数据？

Question

如果我可以循环这个水平数据数组，无论添加多少数据数组，有没有办法循环该垂直数据数组，无论添加多少数据？

// Expect Many arrays of data will be added
$array = [
[1,2,3,4,5],
[101,102,103,104,105],
[10,20,30,40,50],
[210,220,230,240, 250 => ['x','y','z'] ],
[100,200,300,400,500, ['a','b','c'] ],
];

// Loop the array data as added
// Loop Horizontal no matter how many arrays of data's will added

for ( $i=0; $i < count($array) ; $i++) {

echo "<pre>";
print_r($array[$i]);
echo "</pre>";

}

// How can I loop this array using FOR loop or FOREACH loop ?
// This will loop Vertical Expect that many arrays of data will added or appended on it .

 [210,220,230,240, 250 => ['x','y','z'] ],
 [100,200,300,400,500, ['a','b','c'] ]

结果：数组转换为字符串

• 提前致谢

Answer 1

如果您希望递归地循环遍历数组，当您在数组中找到数组时，您也可以循环遍历该数组，这是一种方法：

function recursive_loop( $array ) {
    foreach( $array as $key => $value ) {
        if ( is_array( $value ) ) {
            recursive_loop( $value );
        } else {
            // Do whatever thing you want to do with each value
        }
    }
}

$array = [
    [1,2,3,4,5],
    [101,102,103,104,105],
    [10,20,30,40,50],
    [210,220,230,240, 250 => ['x','y','z'] ],
    [100,200,300,400,500, ['a','b','c'] ],
];

recursive_loop($array);